George neilson



0. NEILSON.

Lamp Wk Raiser. No. 80,082. Patented sept. 18, 1880.

N. PETERS PhalmLichogmnher, wzshmgeon. D. cv

UNITED STATES PATENT OFFICE.

GEORGE NEILSON, OF SOUTH BOSTON, MASSACHUSETTS.

LAMP.

Specification of Letters Patent No. 30,082, dated September 18, 1860.

To all whom it may concern:

Be it known that I, GEORGE NEILsoN, of Boston, in the county of Su'olkand State of Massachusetts, have invented certain new and usefulImprovements in Lamps for Burning Kerosene or other Hydrocarbon LiquidsRich in Carbon; and I do hereby declare that the same are fullydescribed and represented in the following specification and theaccompanying drawings, of which- Figures l, and 2, are side elevations,and Fig. 3, a vertical section of my improved burner. Fig. et, is ahorizontal and transverse section taken through the shaft of the wickelevator. Fig. 5, is an elevation of the conical deflector.

In the drawings A, denotes the cap or part for supporting the chimney Band the deflector O.

The sides of the part, A, are conical or tapering and are slit ordivided into several separate parts or spring jaws, a, a., a. Just abovethe screw, b, of the bottom, the said spring jaws are encompassed by anannular tapering collar or a contractile ring, D, whose lower edge isprovided with a milled iange, o. This ring is constructed with two slotsCZ, (Z, which are arranged on opposite sides of it and with eachinclined at an acute angle with the base of the ring. The shaft E, ofthe wick elevator, F, is carried vthrough these slots and they havetheir inclinations so arranged that when the ring, D, is rotated orturned in one direct-ion on the part, A, such ring by the action of theslots against the said shaft shall be crowded upward againstthe springjaws so as to cause them to move in radial directions toward the glasschimney B, and close upon it so as to confine it to the burner.

The lower or base part of the conical deiiector, O, is constructed withan annular shelf, e, and a trough f, arranged concentrically about thebody of the deflector. Through the outer side of the trough, f, a seriesof air ducts or holes g, g, g, are made as shown in the drawings.Furthermore, the body or spring jaws, a, a, a, of the burner are soformed that when the deflector is within them as shown in Fig. 3, thesurface of the lower edge of the trough, f, shall so rest against theinner surface of the jaws as to cut oft1 the owage of the hydro-carbonvapor between such edge or part, it, and the said jaws. Both above andbelow the circle of contact, the jaws are perforated with air inlets ororifices. The bottom of the burner is also provided with a vapor escapehole, z', leading from the interior chamber of the burner'and aside ofthe wick tube, H. The chimney rests on the shelf, e, and is formed witha flange, 71:, which enters a corresponding recess, Z, formed on theinner face of each spring jaw. It is by means of the contractile ringthat the said spring jaws are clamped on the chimney so as to hold itfast to the burner. The improved mode of constructing the lower or basepart of the defiector or cone is preferable to forming it withcorrugations and in other respects as heretofore patented by me.

The above described improved mode of making the deiiector enables it tobe manufactured at less cost and causes it to operate to betteradvantage in comparison with the corrugated 'bottom deflector. The airwhich passes into the space surrounding the body of the deflector isinsulated from the currents of vapor that escape from the body of thelamp and pass into the body of the deiector and by it are deflected intothe flame on the wick so as to be consumed by it.

I would remark that essential features of my invention are the extensionof the shaft of the wick elevator through the contractile ring andproviding the latter with means substantially as described, or theequivalent thereof, by which while the ring is revolved on the body ofthe burner such ring may be crowded upward against the springs a, a, a,&c., so as to close them upon the chimney. The peculiar arrangement andapplication of the contractile ring with reference to the burner and theshaft of its wick elevator causes the shaft to maintain the ring inplace and to serve with the slots as a means of effecting the upwardmovement of the ring while such ring is being turned on the burner.

I claiml. The arrangement and application ofl thefcontractle ring Withreference to the series of air inlets, g, g, arranged together sprmgjaws a, a, a, and the shaft of the and With the conical body of thedeflector Wick elevator and to operate in manner subsubstantially asspeceL stantially as described. GEORGE NEILSON. 5 2. The improved modeof constructing the W tnesses:

base part of the conical deector, viz. with R. H. EDDY,

an annular shelf, e, and trough, f, and a F. P. HALE, J1.

